Question 934986
FROM INVESTMENT FORMULA I=Pa*ia + Pb*ib--------formula 1

LET Pa=amount invested by 5%=.05
Pb=amount invested by 6%=.06 w/c =Pa-7000(it means 7000 less than the amount of Pa "note less tha this amount")
from the fomula 1

I=the frofit or investment yield =8820php
so
8820=Pa(.05) + Pa-7000(.06)

Pa=84,000 php-------amount investet by 5%

Pb=Pa-7000
Pb=84000-7000
Pb=77,000 php amount invested by 6%

cheking  84,000(.05)+77000(.06)=8820